And Bill is bringing a GM with him (which is a personnel development that I think will revolutionize CFB).
With 105 players (essentially twice an NFL roster), college teams today would do well to adopt the pro model and hire GMs for their football team to work with the coaching staff on recruiting, roster composition, and player compensation (settlement on revenue sharing is coming). Bill's already doing that.
Bill also knows what nutrition, strength and conditioning, and film study need to look like at a pro level. The nutrition and strength and conditioning is another big thing, IMO. This won't be "bro science"—he's not going to hire guys who burned out trying to franchise gym locations to take care of these things—and I think he's going to get pro-level results.
But the biggest thing, IMO, is that he's going to be doing something different, and different can be an advantage. I think a lot of pro-minded players would be willing to invest more time into a system that focuses on player development playing pro-style football. Spread and air-raid are fun, but they don't prepare guys for the NFL. In fact, they make the adjustment to the NFL a lot harder. I think out of the thousands of players in CFB, Bill can find 50-100 that are interested in being NFL ready and will buy in to a developmental grind.